diff --git a/MODULE.bazel b/MODULE.bazel
index fdaaaff317e..85c8b1aec13 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -14,7 +14,7 @@ IO_GRPC_GRPC_JAVA_ARTIFACTS = [
     "com.google.auto.value:auto-value-annotations:1.11.0",
     "com.google.auto.value:auto-value:1.11.0",
     "com.google.code.findbugs:jsr305:3.0.2",
-    "com.google.code.gson:gson:2.12.1",
+    "com.google.code.gson:gson:2.13.2",
     "com.google.errorprone:error_prone_annotations:2.45.0",
     "com.google.guava:failureaccess:1.0.1",
     "com.google.guava:guava:33.5.0-android",
diff --git a/android-interop-testing/build.gradle b/android-interop-testing/build.gradle
index 49569b911e0..ebb31fddca2 100644
--- a/android-interop-testing/build.gradle
+++ b/android-interop-testing/build.gradle
@@ -79,7 +79,7 @@ dependencies {
         exclude group: 'com.google.guava'
     }
 
-    androidTestImplementation 'androidx.test.ext:junit:1.1.3',
+    androidTestImplementation libraries.androidx.test.ext.junit,
             'androidx.test:runner:1.4.0'
 }
 
diff --git a/examples/example-gauth/pom.xml b/examples/example-gauth/pom.xml
index 4b64eaed454..9fb854629b4 100644
--- a/examples/example-gauth/pom.xml
+++ b/examples/example-gauth/pom.xml
@@ -28,6 +28,11 @@
         <type>pom</type>
         <scope>import</scope>
       </dependency>
+      <dependency><!-- upgrade version from google-auth-library-oauth2-http -->
+        <groupId>com.google.code.gson</groupId>
+        <artifactId>gson</artifactId>
+        <version>2.13.2</version>
+      </dependency>
     </dependencies>
   </dependencyManagement>
 
diff --git a/examples/example-oauth/pom.xml b/examples/example-oauth/pom.xml
index 480923df5f4..9ce20f2f684 100644
--- a/examples/example-oauth/pom.xml
+++ b/examples/example-oauth/pom.xml
@@ -30,6 +30,11 @@
         <type>pom</type>
         <scope>import</scope>
       </dependency>
+      <dependency><!-- upgrade version from google-auth-library-oauth2-http -->
+        <groupId>com.google.code.gson</groupId>
+        <artifactId>gson</artifactId>
+        <version>2.13.2</version>
+      </dependency>
     </dependencies>
   </dependencyManagement>
 
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 3806fa3404e..039ff63d81c 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -6,19 +6,21 @@ android-annotations = "com.google.android:annotations:4.1.1.4"
 # 1.9.1+ uses Kotlin and requires Android Gradle Plugin 9+
 # checkForUpdates: androidx-annotation:1.9.0
 androidx-annotation = "androidx.annotation:annotation:1.9.0"
-# 1.15.0+ requires minSdkVersion 21 in android-interop-testing (1.14.x doesn't exist)
+# 1.14.x doesn't exist.
+# 1.15.0+ requires compileSdkVersion 35 which officially requires AGP 8.6.0+.
+# It might work before then, but AGP 7.4.1 fails with:
+#   RES_TABLE_TYPE_TYPE entry offsets overlap actual entry data.
+# 1.16.0+ requires AGP 8.6.0+
 # checkForUpdates: androidx-core:1.13.+
 androidx-core = "androidx.core:core:1.13.1"
-# 2.9+ requires minSdkVersion 21 in android-intetrop-testing
+# 2.9+ requires AGP 8.1.1+
 # checkForUpdates: androidx-lifecycle-common:2.8.+
 androidx-lifecycle-common = "androidx.lifecycle:lifecycle-common:2.8.7"
 # checkForUpdates: androidx-lifecycle-service:2.8.+
 androidx-lifecycle-service = "androidx.lifecycle:lifecycle-service:2.8.7"
 androidx-test-core = "androidx.test:core:1.7.0"
 androidx-test-ext-junit = "androidx.test.ext:junit:1.3.0"
-# 1.7.0+ requires minSdkVersion 21 in android-interop-testing
-# checkForUpdates: androidx-test-rules:1.6.+
-androidx-test-rules = "androidx.test:rules:1.6.1"
+androidx-test-rules = "androidx.test:rules:1.7.0"
 animalsniffer = "org.codehaus.mojo:animal-sniffer:1.26"
 animalsniffer-annotations = "org.codehaus.mojo:animal-sniffer-annotations:1.26"
 assertj-core = "org.assertj:assertj-core:3.27.6"
@@ -37,7 +39,7 @@ checkstyle = "com.puppycrawl.tools:checkstyle:10.26.1"
 checkstylejava8 = "com.puppycrawl.tools:checkstyle:9.3"
 commons-math3 = "org.apache.commons:commons-math3:3.6.1"
 conscrypt = "org.conscrypt:conscrypt-openjdk-uber:2.5.2"
-# 141.7340.3+ requires minSdkVersion 23
+# 141.7340.3+ requires Java 17+
 # checkForUpdates: cronet-api:119.6045.31
 cronet-api = "org.chromium.net:cronet-api:119.6045.31"
 # checkForUpdates: cronet-embedded:119.6045.31
@@ -54,9 +56,7 @@ google-auth-credentials = "com.google.auth:google-auth-library-credentials:1.41.
 google-auth-oauth2Http = "com.google.auth:google-auth-library-oauth2-http:1.41.0"
 # Release notes: https://cloud.google.com/logging/docs/release-notes
 google-cloud-logging = "com.google.cloud:google-cloud-logging:3.23.9"
-# 2.13.0 requires error_prone_annotations:2.37.0, but we are stuck with 2.36.0
-# checkForUpdates: gson:2.12.+
-gson = "com.google.code.gson:gson:2.12.1"
+gson = "com.google.code.gson:gson:2.13.2"
 guava = "com.google.guava:guava:33.5.0-android"
 guava-betaChecker = "com.google.guava:guava-beta-checker:1.0"
 guava-testlib = "com.google.guava:guava-testlib:33.5.0-android"
diff --git a/repositories.bzl b/repositories.bzl
index c89e1bdff32..de0729c35ab 100644
--- a/repositories.bzl
+++ b/repositories.bzl
@@ -18,7 +18,7 @@ IO_GRPC_GRPC_JAVA_ARTIFACTS = [
     "com.google.auto.value:auto-value-annotations:1.11.0",
     "com.google.auto.value:auto-value:1.11.0",
     "com.google.code.findbugs:jsr305:3.0.2",
-    "com.google.code.gson:gson:2.12.1",
+    "com.google.code.gson:gson:2.13.2",
     "com.google.errorprone:error_prone_annotations:2.45.0",
     "com.google.guava:failureaccess:1.0.1",
     "com.google.guava:guava:33.5.0-android",